Acids, Bases, Salts, and Electrolyte Solutions

Question 1

A substance that can act as either an acid or a base is ____.

Accepted Answer

amphoteric

Question 2

Which of the following is a basic anhydride?

Accepted Answer

SnO

Question 3

Which of the following might be formed by the hydrolysis of a salt?

Accepted Answer

An acidic solution.

Question 4

An ion that is present in the solution but is not involved in the reaction is a (an) ____.

Accepted Answer

spectator ion

Question 5

According to the Bronsted-Lowry theory, a substance that donates a proton is classified as ...

Accepted Answer

an acid

Question 6

What is the pH of a 0.05 M HI solution?

Accepted Answer

1.3

Question 7

In the reaction Cu2+ + 5 H2O <--> Cu(H2O)5, the water molecule functions as a (an) ____.

Accepted Answer

Lewis base

Question 8

What salt is formed by the complete neutralization of sulfuric acid with magnesium hydroxide?

Accepted Answer

Magnesium Sulfate

Question 9

What is the [CO32-] in a saturated solution of magnesium carbonate? Ksp = 1.15 E-5.

Accepted Answer

3.39 E-3 M

Question 10

What is the pH of a solution with a hydroxide ion concentration of 0.00312 M?

Accepted Answer

11.5

Question 11

The products from the hydrolysis of Al(NO3)3 would cause the solution to become ____.

Accepted Answer

acidic

Question 12

Which of the following is an example of a solution that is buffered?

Accepted Answer

Blood

Question 13

50.0 cm3 of 1.00 M KOH is used in titrating 25.0 cm3 of H2SO4. Find the [H2SO4].

Accepted Answer

1.00 M

Question 14

What is the pH of a solution that has a hydronium ion concentration of 0.035 M?

Accepted Answer

1.5

Question 15

In the reaction HCl(aq) + KOH(aq) <--> KCl(aq) + H2O(l), what is the conjugate base?

Accepted Answer

KCl

Question 16

Arrhenius concluded that a base ionizes in water to produce ___.

Accepted Answer

hydroxide ions

Question 17

For a salt, the product of the concentration of the ions each raised to the appropriate power

Accepted Answer

is the solubility product constant

Question 18

What affect does a buffer system have on a solution?

Accepted Answer

It will maintain a constant pH.

Question 19

What is [H3O+] in a water solution having a [OH-] of 1.00 E-3 M?

Accepted Answer

1.00 E-11 M

Question 20

In the titration of 250 cm3 of 2M HCl, which of the following bases requires the least volume?

Accepted Answer

1.50 M Ca(OH)2

Question 21

What is the hydronium ion concentration in a solution with a pH of 7.3?

Accepted Answer

5.01 E-8 M

Question 22

What is the [Li+] in a saturated solution of lithium carbonate? Ksp = 1.07 E-3

Accepted Answer

0.129 M

Question 23

What is the [H3O+] of a solution in a 0.75 M solution of acetic acid (CH3COOH)? Ka = 1.8 E-5

Accepted Answer

3.7 E-5 M

Question 24

Which of the following combinations could be used to make a buffer solution?

Accepted Answer

A weak acid and one of its salts.

Question 25

The products that would be expected from the hydrolysis of Al(NO3)3 are ____.

Accepted Answer

HNO3 and Al(OH)3

Question 26

Which of the following applies to a solution with a pH of 4.0?

Accepted Answer

It has a hydroxide ion concentration of 1 E-10.

Question 27

Which characteristic of an indicator makes it useful in showing the endpoint of neutralization?

Accepted Answer

Indicators change color over a narrow pH range.

Question 28

Which of the following characterizes a strong acid?

Accepted Answer

It ionizes completely into positive and negative ions.

Question 29

Lewis defined a base as a (an) ____.

Accepted Answer

electron pair donor

Question 30

Which is the correct formula for the substance produced when K2O is dissolved in water?

Accepted Answer

KOH

Question 31

The [H3O+] and [OH-] of pure water are 1 E-7 M. The ion product constant for water is...

Accepted Answer

1 E-14

Acids, Bases, Salts, and Electrolyte Solutions

Questions 31

Acids, Bases, Salts, and Electrolyte Solutions

Questions 31